Network Firewall

1 week ago

London, Greater London, United Kingdom Substance Full time £40,000 - £80,000 per year

Substance is seeking a detail-oriented and experienced Network Firewall & Software Manual Testing Engineer to join our growing team. In this role, you will be responsible for ensuring the robustness and security of network systems by conducting comprehensive manual testing on firewalls and related software applications. You will work closely with development teams to validate security configurations and functionality, identifying vulnerabilities and performance issues before they affect the production environment.

Key Responsibilities:

  • Conduct manual testing of firewall and hotspot gateway software to ensure reliability and performance.
  • Document all test cases, results, and observations using Excel or related software tools.
  • Identify, log, and track bugs and defects, ensuring they are properly reported and addressed by developers.
  • Perform various testing methodologies, including functional testing, regression testing, performance testing, and unit testing.
  • Collaborate with developers and network engineers to troubleshoot and validate fixes.
  • Take full ownership of assigned tasks, ensuring quality assurance objectives are met.
  • Ensure compliance with network security standards and best practices.
  • Continuously improve test cases and contribute to process enhancements.

Job Competencies:

  • Software Testing & Manual Testing (including Functional, Regression, Unit, and Performance Testing)
  • Computer Networking principles and security protocols
  • Strong logical reasoning and problem-solving skills
  • Ability to work independently and take ownership of assigned tasks
  • Experience with bug tracking and test case documentation tools is a plus

`

Requirements
  • Bachelor's degree in Computer Science, Information Technology, or a related field.
  • Experience in manual software testing within networking or cybersecurity environments.
  • Familiarity with firewall and network security concepts.
  • Strong analytical and troubleshooting skills.
  • Experience with testing tools and Excel-based test documentation.
Benefits

At Substance, we value action over words. If your profile aligns with our needs, expect to hear from us within 1-2 weeks. If not, no fluff—just know we appreciate your interest and will keep you in mind for future roles where your expertise can make an impact. We focus on real connections and meaningful matches, ensuring the right opportunity finds you at the right time.

Pte. Ltd. | EA License No: 24C2398

  • Cloud Network and Firewall Lead

    4 days ago

    London, Greater London, United Kingdom Legal & General Full time £60,000 - £120,000 per year

    Legal & General (L&G) is a leading UK financial services group and major global investor.We've been safeguarding people's financial futures since 1836, and strive to build a better society, while improving the lives of our customers and creating value for shareholders.We are one of the world's largest asset managers and provide powerful asset origination...

  • Cloud Network and Firewall Lead

    2 weeks ago

    London, Greater London, United Kingdom Legal & General Investment Management Full time £60,000 - £120,000 per year

    LondonFull-timeIT & Change4365_15387Company DescriptionLegal & General (L&G) is a leading UK financial services group and major global investor.We've been safeguarding people's financial futures since 1836, and strive to build a better society, while improving the lives of our customers and creating value for shareholders.We are one of the world's largest...

  • Firewall Engineer

    7 days ago

    London, Greater London, United Kingdom Natilik Full time £60,000 - £80,000 per year

    Job description Natilik is a Global Technology Solutions Partner. Our mission continues to be two-fold; growing a brand that is seen as the industry's 'Confident Guide' sat between the vendors who make technology, and our clients who want to use it to help deliver the outcomes most important to them. We offer products, services, platforms, applications, and...

  • Firewalls And Load Balancer-Palo Alto

    2 weeks ago

    London, Greater London, United Kingdom Zensar Technologies Full time £60,000 - £80,000 per year

    DescriptionCheckpoint, Juniper SRX and Palo Alto Firewall knowledge (deployment and administration). Priority would be Palo Alto and Checkpoint being used for the role around 65% of day-to-day operations.Knowledge for Routing and Switching (35%) of the role would comprise of this especially for the upcoming LAN refresh in our DC's. Good overall understanding...

  • Software Firewall Sales Specialist

    1 week ago

    London, Greater London, United Kingdom Alto Full time £80,000 - £120,000 per year

    **Our Mission**At Palo Alto Networks everything starts and ends with our mission:Being the cybersecurity partner of choice, protecting our digital way of life.Our vision is a world where each day is safer and more secure than the one before. We are a company built on the foundation of challenging and disrupting the way things are done, and we're looking for...

  • Network Engineer

    2 weeks ago

    London, Greater London, United Kingdom Infoplus Technologies UK Limited Full time £60,000 - £80,000 per year

    Job Description:Checkpoint, Juniper SRX and Palo Alto Firewall knowledge (deployment and administration). Priority would be Palo Alto and Checkpoint being used for the role around 65% of day-to-day operations.Knowledge for Routing and Switching (35%) of the role would comprise of this especially for the upcoming LAN refresh in our DC's. Good overall...

  • Network Operations Engineer

    2 weeks ago

    London, Greater London, United Kingdom OpticoreIT Full time £60,000 - £80,000 per year

    We are currently seeking aNetwork Operations Engineer, to join ourNetwork Practice; within one of our Financial Services clients working in an elite Operations Team. This is an initial 6 month contract opportunity Inside IR35 with the prospect of extension. You will be required to be on site 3 days a week, based inCentral LondonOpticore ITis a rapidly...

  • Snr Network Architect

    7 days ago

    London, Greater London, United Kingdom Leap29 Full time £60,000 - £100,000 per year

    Job DescriptionNetwork Engineer – On-Prem & Cloud NetworkingAre you a skilled Network Engineer with strong expertise in both on-premises and cloud networking? We are seeking a talented professional to join a dynamic team and contribute to the build and testing of a Smart DCC Azure infrastructure alongside on-prem network components.What You'll Do:Design,...

  • Network Engineer

    6 hours ago

    London, Greater London, United Kingdom CIB Recruitment Full time £100,000 - £150,000 per year

    Role Overview:Experienced DV Cleared Network Engineer needed to support and enhance secure data centre infrastructure. You'll be responsible for network design, implementation, configuration, and ongoing support, including operational and project-based tasks.Key Responsibilities:Design, implement, and support data centre network solutionsAudit and review...

  • Network and Infrastructure Engineer

    1 week ago

    London, Greater London, United Kingdom Roc Search Full time £55,000 - £60,000 per year

    Network and Infrastructure EngineerMy fantastic client based in Bromley is currently looking for a solid Network and Infrastructure Engineer to come on board on a permanent basis.The primary responsibility for this role will be to take the lead on Network Engineering but it will also include contributing to broader infrastructure operations. The role will be...